18774220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{283}}^1$

素因数の和:430

約数の個数: 48

約数和(自身を含む): 41223168

約数和(自身を除く): 22448948

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 107, 124, 155, 214, 283, 310, 428, 535, 566, 620, 1070, 1132, 1415, 2140, 2830, 3317, 5660, 6634, 8773, 13268, 16585, 17546, 30281, 33170, 35092, 43865, 60562, 66340, 87730, 121124, 151405, 175460, 302810, 605620, 938711, 1877422, 3754844, 4693555, 9387110, 18774220]

約数ペア:

[(1, 18774220), (2, 9387110), (4, 4693555), (5, 3754844), (10, 1877422), (20, 938711), (31, 605620), (62, 302810), (107, 175460), (124, 151405), (155, 121124), (214, 87730), (283, 66340), (310, 60562), (428, 43865), (535, 35092), (566, 33170), (620, 30281), (1070, 17546), (1132, 16585), (1415, 13268), (2140, 8773), (2830, 6634), (3317, 5660)]